FJ-1638

Spark Plug 167-1638 14 mm for Onan QG 5500 7000 RV Generator

Spark PlugsCE / ISO 9001

Platinum spark plug 1638, 14 mm thread, two per pack. Cross-references 167-1638 and 1671638. Fits Onan QG 5500 and QG 7000 (HGJAA, HGJAB), Marquis Gold and Marquis RV QG generators.

$8.99/ unit · referenceMOQ:1 units
Qty
min 1 units
Tier Pricing (USD / unit)
QtyUnit Price
1+ units$8.99
10+ units🎯 Recommended$8.54
50+ units$7.64
100+ units$7.19

📋 Key Specs

Part Number167-1638
TypeSpark plug, platinum tip
Thread Size14 mm
MaterialPlatinum tip, steel shell
Quantity2 plugs
Contents2 spark plugs
ApplicationOnan QG 5500 and QG 7000 RV generators

❓ FAQ

The QG 5500 and QG 7000 series (HGJAA, HGJAB), the Marquis Gold and the Marquis RV QG models.

Two, which is a full set for a twin-cylinder generator.

14 mm, the same thread as the plug it replaces, so it seats at the factory depth in the cylinder head.

Yes. 1671638 is the same Onan number written without the hyphen.

No. They are listed for Onan RV generator sets; thread length and heat range are chosen for those engines.

MOQ varies by product: 5–100 units for standard parts (see product page). Tier pricing decreases with volume. Custom parts usually ≥ 50 units, evaluated by process.

Stock/short-run: 7–15 days; bulk orders 20–35 days; custom 30–45 days incl. sampling. Note your deadline in the inquiry — sales will confirm capacity.

Add products to the inquiry list and submit with contact info. Sales contact you within 24h and issue a formal quotation (tier pricing + proforma invoice) within 48h. The AI assistant can pre-fill inquiries in chat.

Yes. We develop from drawings/samples and support private labeling. Process: evaluation → sampling (15–25 days) → approval → mass production.

Payment: T/T 30% deposit + 70% before shipment / L/C / Trade Assurance. Shipping: FOB Ningbo/Shanghai, CIF or DDP; EU & NA warehouses; sea/air/express.

ISO 9001 & IATF 16949; CE/UL/ATEX on key products. Every batch ships with inspection reports; third-party inspection (SGS/BV) supported.

Description

Product Overview

Spark plug 167-1638 is a platinum-tipped plug with a 14 mm thread for Onan RV generator sets, sold as a pair. The two plugs in the pack replace 1671638 in the QG 5500 and QG 7000 series (HGJAA, HGJAB), the Marquis Gold and the Marquis RV QG models, where they fire the engine under lean-burn running.

Key Features

Platinum tip — keeps the voltage the ignition needs low as the plug wears, which is what a lean-burn generator engine wants.
14 mm thread — matches the cylinder head thread of the QG series, so the plug seats at the factory depth.
Two plugs per pack — a full change for a twin-cylinder generator set, no second order needed.
Corrosion-resistant shell — stands up to a set that sits unused for months between trips.
Fires under lean burn — the ignition still lights the charge when the generator runs at light load and the mixture is thin.

Cross Reference

Onan — 167-1638
Same plug, hyphen-free form — 1671638
Fits — QG 5500 and QG 7000 series (HGJAA, HGJAB), Marquis Gold, Marquis RV QG

Specifications

Part Number — 167-1638
Type — Spark plug, platinum tip
Thread Size — 14 mm
Material — Platinum tip, steel shell
Quantity — 2 plugs
Contents — 2 spark plugs
Application — Onan QG 5500 and QG 7000 RV generators

Applications

Onan QG 5500 — HGJAA and HGJAB generator sets
Onan QG 7000 — HGJAA and HGJAB generator sets
Marquis Gold / Marquis RV QG — same plug number in the tune-up parts list
Where it is used — RV, trailer and camper generator compartments